contamination
Contamination refers to the presence of unwanted or harmful substances that make something impure, dirty, or unfit for use. It is commonly used in scientific, environmental, and forensic contexts to describe the loss of purity through contact with a foreign element.
例文
3 / 5The contamination of the local pond by trash made it impossible to swim.
The polluting of the pond with garbage prevented people from swimming.
The authorities are investigating the potential contamination of the groundwater supply.
Officials are looking into the possible poisoning of the underground water sources.
There's some contamination in the lab sample, so we might have to start the test over.
The sample has been dirtied, so the test needs to be repeated.
語族
覚え方のコツ
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
クイックテスト
The laboratory had to discard the results because of accidental _______ of the DNA samples.
正解！
正解は： contamination
例文
The contamination of the local pond by trash made it impossible to swim.
everydayThe polluting of the pond with garbage prevented people from swimming.
The authorities are investigating the potential contamination of the groundwater supply.
formalOfficials are looking into the possible poisoning of the underground water sources.
There's some contamination in the lab sample, so we might have to start the test over.
informalThe sample has been dirtied, so the test needs to be repeated.
Researchers found significant levels of chemical contamination in the soil samples collected near the factory.
academicScientists identified high amounts of toxic chemicals within the dirt taken from the industrial area.
The food processing plant was closed due to suspected bacterial contamination in the packaging area.
businessThe factory shut down because they thought harmful bacteria had entered the packaging zone.
語族
よく使う組み合わせ
よく使うフレーズ
source of contamination
the origin of the polluting substance
avoid cross-contamination
taking steps to prevent the spread of germs between items
levels of contamination
the measured amount of impurities present
よく混同される語
Pollution is a broad term for environmental damage; contamination specifically implies that a substance has become impure or dangerous due to a foreign additive.
Infection refers to the biological invasion of a living host by pathogens, whereas contamination refers to the presence of those pathogens on surfaces or in substances.
使い方のコツ
Use 'contamination' when discussing scientific samples, food safety, or environmental issues where a specific substance has made something else impure. It is often an uncountable noun.
よくある間違い
Learners often use 'contaminate' as a noun; remember that 'contamination' is the noun form. Also, do not confuse it with 'contagion', which refers to the spread of disease.
覚え方のコツ
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
語源
Derived from the Latin 'contaminatio', meaning 'defilement' or 'corruption' through touch or contact.
文法パターン
文化的な背景
In modern society, this word is frequently seen in 'boil water' advisories or food recall news regarding E. coli or Salmonella.
クイックテスト
The laboratory had to discard the results because of accidental _______ of the DNA samples.
正解！
正解は： contamination
関連語彙
関連単語
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bigeoent
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untangous
C1Describing something that is naturally free from knots, complications, or intricate twists. It can refer to physical objects that do not entangle easily or abstract concepts that are remarkably clear and straightforward.
recelerine
C1Characterized by a secretive or concealing nature, specifically relating to the act of harboring or hiding something illicit or private. It is typically used in formal or literary contexts to describe spaces, behaviors, or objects that are intentionally obscured from sight.
hyperlocate
C1Describing something that is targeted, positioned, or tracked with extreme geographic precision, typically within a very small area like a specific building or street corner. It is most commonly used in digital marketing and logistics to describe services that react to a user's exact micro-location.
encival
C1To formally document or incorporate something into a civic, legal, or historical record. It specifically refers to the act of ensuring a concept or event is preserved within the official administrative framework of a society.
deequacy
C1To systematically reduce the quality, sufficiency, or effectiveness of a system or process until it falls below required standards. It involves the intentional or incidental degradation of adequacy within a specific functional framework.
cojunctic
C1A cojunctic is a specific constituent part or an individual element within a linked logical set or complex structure. In technical contexts, it refers to one of several items that are joined together to form a functional or logical whole.
homothermty
C1Homothermty (more commonly known as homeothermy) refers to the physiological condition of maintaining a stable internal body temperature regardless of the external environment. This process allows organisms to remain active in a wide range of temperatures by using internal metabolic heat.
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